LKPD SUHU DAN PEMUAIAN 2013.docx
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Transcript of LKPD SUHU DAN PEMUAIAN 2013.docx
LEMBAR KEGIATAN PESERTA DIDIKKELAS X – SEMESTER GENAP - TAHUN 2013
PEMUAIAN DAN ENERGI KALOR
Sebutkan tujuan pelajaran yang ingin anda capai :
Thermal Expansion Coefficients at 20 C
MaterialFractional expansionper degree C x10^-6
Fractional expansionper degree F x10^-6
Glass, ordinary 9 5
Glass, pyrex 4 2.2
Quartz, fused 0.59 0.33
Aluminum 24 13
Brass 19 11
Copper 17 9.4
Iron 12 6.7
Steel 13 7.2
Platinum 9 5
Tungsten 4.3 2.4
Gold 14 7.8
Silver 18 10
Thermal Conductivity
MaterialThermal conductivity(cal/sec)/(cm2 C/cm)
Thermal conductivity(W/m K)*
Diamond ... 1000
Silver 1.01 406.0
Copper 0.99 385.0
Gold ... 314
Brass ... 109.0
Aluminum 0.50 205.0
Iron 0.163 79.5
Steel ... 50.2
Lead 0.083 34.7
Mercury ... 8.3
Ice 0.005 1.6
Glass,ordinary 0.0025 0.8
Concrete 0.002 0.8
Water at 20° C 0.0014 0.6
Asbestos 0.0004 0.08
Thermal Conductivity
Suhu, Pemuaian, dan Kalor - Tahun 2013 – Rudy Hilkya
MaterialThermal conductivity(cal/sec)/(cm2 C/cm)
Thermal conductivity(W/m K)*
Snow (dry) 0.00026 ...
Fiberglass 0.00015 0.04
Brick,insulating ... 0.15
Brick, red ... 0.6
Cork board 0.00011 0.04
Wool felt 0.0001 0.04
Rock wool ... 0.04
Polystyrene (styrofoam) ... 0.033
Polyurethane ... 0.02
Wood 0.0001 0.12-0.04
Air at 0° C 0.000057 0.024
Helium (20°C) ... 0.138
Hydrogen(20°C) ... 0.172
Nitrogen(20°C) ... 0.0234
Oxygen(20°C) ... 0.0238
Silica aerogel ... 0.003
*Most from Young, Hugh D., University Physics, 7th Ed. Table 15-5. Values for diamond and silica aerogel from CRC Handbook of Chemistry and Physics.
Note that 1 (cal/sec)/(cm2 C/cm) = 419 W/m K. With this in mind, the two columns above are not always consistent. All values are from published tables, but can't be taken as authoritative.
Gambarkan peta konsep :
Suhu, Pemuaian, dan Kalor - Tahun 2013 – Rudy Hilkya